Positioned between glamorous Sun Valley and desolate Craters of the Moon, the Pioneer Mountains are, for many, just a blank spot on the map. The Outdoor Idaho crew set out to change that, exploring the valleys and the tallest peaks of Idaho's second highest mountain range. This is not official wilderness, but it's every bit as wild as the nearby Boulders and White Clouds, with a rich history and diverse landscape sure to inspire and intrigue.